Comparison between the fertilizers efficiency and apparent efficiency of nitrogen of new-type N-fertilizers

The experiments of new-type N-fertilizers were carried out in paddy field and upland field.Compared with common urea,after humic acid-urea,lignin-urea and coating-urea were applicated,the output of paddy rice and wheat were oboviously increased.The yield of rough rice was increased by 14%～16%，and the yield of wheat grain was increased by 4%～17%，the order of fertilizers efficiency was humic acid-urea≥lignin-urea＞coating-urea.Apparent efficiency of nitrogen was also increased by 7% in paddy rice and increased by 2.7%～17% in wheat.